<template>
  <div class="swiper-container" ref="cur">
    <div class="swiper-wrapper">
      <div
        class="swiper-slide"
        v-for="carousel in list"
        :key="carousel.id"
      >
        <img :src="carousel.imgUrl" />
      </div>
    </div>
    <!-- 如果需要分页器 -->
    <div class="swiper-pagination"></div>

    <!-- 如果需要导航按钮 -->
    <div class="swiper-button-prev"></div>
    <div class="swiper-button-next"></div>
  </div>
</template>

<script>
import Swiper from "swiper";
export default {
  name: "Carousel",
  props:['list'],
  watch: {
    list: {
      //立即监听数据
      immediate: true,
      //只能监听数据已经有了，但是v-for动态渲染的结构我们还没办法确定，因此还需要用nextTick
      handler(newValue, oldValue) {
        this.$nextTick(() => {
          // 使用ref获取DOM标签
          var mySwiper = new Swiper(this.$refs.cur, {
            // direction: 'vertical', // 垂直切换选项
            loop: true, // 循环模式选项
            autoplay: {
              // 每秒钟自动切换
              delay: 1500,
              // 用户操作swiper之后，是否禁止autoplay
              disableOnInteraction: false
            },

            // 如果需要分页器
            pagination: {
              el: ".swiper-pagination",
            },

            // 如果需要前进后退按钮
            navigation: {
              nextEl: ".swiper-button-next",
              prevEl: ".swiper-button-prev",
            },

            // 如果需要滚动条
            scrollbar: {
              el: ".swiper-scrollbar",
            },
          });
        });
      },
    },
  },
};
</script>

<style>
</style>